Pfizer is one of the world's largest pharmaceutical firms, with annual sales close to $50 billion (excluding COVID-19 product sales). While it historically sold many types of healthcare products and chemicals, now prescription drugs and vaccines account for the majority of sales. Top sellers include pneumococcal vaccine Prevnar 13, cancer drug Ibrance, and cardiovascular treatment Eliquis. Pfizer sells these products globally, with international sales representing close to 50% of total sales. Within international sales, emerging markets are a major contributor.